Revelator 9" Subwoofer
ScanSpeak
Type Number:23W/4557T00

Features

The Revelator series has for years been celebrated for producing the best sounding electro dynamic transducers in the world. Since ScanSpeak was founded in 1970, the audio engineers and R&D experts working on the line have been on a quest to create drivers that reveal all the sound in recordings, hiding nothing from the listener. This quest has resulted in several revolutionary inventions that remove distortion in the magnet systems and in the moving parts of the speaker. The philosophy is that the sound has to be very dynamic, giving a perfect transient response and providing tonal balance. The Revelator subwoofer is extending the new woofer aluminum cone design into deep bass reproduction, resulting in unrivaled performance.

Driver Highlights: Long throw low loss surround, rigid aluminium cone, SD-1 motor.

Specs

Electrical Data
Nominal Impedance Zn 4 ohm
DC Resistance Re 3.45 ohm
Voice Coil Inductance Le 0.45 mH
TS Parameters
Resonance Frequency fs 20.5 Hz
Mechanical Q factor QMS 4.8
Electrical Q factor QES 0.52
Total Q factor Qts 0.47
Force Factor Bl 9.3 Tm
Mechanical Resistance Rms 2.7 Kg/s
Moving Mass Mms 101 g
Effective Piston Area sd 232 cm^2
Equivalent Volume Vas 45.6 ltrs
Sensitivity 2.83V/1m 82 dB
Power Handling
100h RMS noise test IEC 225 W
Voice Coil and Magnet Parameters
Voice Coil Diameter 50 mm
Linear Excursion +/- 13 mm
Max mech. excursion +/- 20 mm

Frequency

Mechanical Dimensions